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2018-08-23Cleanup: pass gasmix by valueGravatar Berthold Stoeger
In a previous commit, the get_gasmix_* functions were changed to return by value. For consistency, also pass gasmix by value. Note that on common 64-bit platforms struct gasmix is the size of a pointer [2 * 32 bit vs. 64 bit] and therefore uses the same space on the stack. On 32-bit platforms, the stack use is probably doubled, but in return a dereference is avoided. Supporting arbitrary gas-mixes (H2, Ar, ...) will be such an invasive change that going back to pointers is probably the least of our worries. This commit is a step in const-ifying input parameters (passing by value is the ultimate way of signaling that the input parameter will not be changed [unless there are references to said parameter]). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-05-26Compute and display gas densityGravatar Robert C. Helling
This appears to be critical for work of breathing so it might be worthwhile to compute. So far only in infobox. For background, see https://www.youtube.com/watch?v=QBajM3xmOtc Signed-off-by: Robert C. Helling <helling@atdotde.de>
2017-04-29Add SPDX header to remaining core filesGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2017-01-16Use real gas compressibility in plannerGravatar Robert C. Helling
Modify formluas for gas use to take into account the compressibility correction for real gases. This introduces also the inverse formula to compute the pressure for a given amount of gas. Signed-off-by: Robert C. Helling <helling@atdotde.de>
2016-04-04Move subsurface-core to core and qt-mobile to mobile-widgetsGravatar Dirk Hohndel
Having subsurface-core as a directory name really messes with autocomplete and is obviously redundant. Simmilarly, qt-mobile caused an autocomplete conflict and also was inconsistent with the desktop-widget name for the directory containing the "other" UI. And while cleaning up the resulting change in the path name for include files, I decided to clean up those even more to make them consistent overall. This could have been handled in more commits, but since this requires a make clean before the build, it seemed more sensible to do it all in one. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>